López, Luis — Vibrational Postprocessing Module for a Quantum Gravimeter

A quantum gravimeter measures the absolute acceleration of gravity g 
using atomic interferometry. In the interferometric process, a cold cloud 
of 87Rb atoms interact with two counter-propagating laser beams, 
which are produced from a single beam that is reflected off a mirror 
located at the end of the gravimeter’s flight tube. Thus, to achieve good 
precision on g among other things, it is necessary to know the phase 
difference induced by the mirror´s displacements. Here we report advances 
on the development of a postprocessing vibrational compensation module, 
carried out in the construction of a portable quantum gravimeter made in Mexico.